the basic formula to calculate a student's GPA is the: A. addition of all grade points in completed courses divided by the number of classes completed B. addition of all grade points in completed courses and subtraction of all uncompleted courses C. multiplication off all grade points in completed classes and subtraction of all uncompleted courses D. multiplication of all grade points in completed courses divided by the number of classes completed

well since twins have about the same dna they dont have one think in common which is the figer print. nobodys fingerprint is the same. if your using twin you would most likely get around the same results for both of them because of the genetics.. i hope this

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

answer; radial motion;

answerlittle bighorn,1876